However, it can raise an exception called the PatternSynta圎xpression exception when the regex passed as a parameter is invalid. The split() method generally does not raise errors and exceptions if we use the correct syntax. The array of strings consists of all the substrings generated by the split() method using the regex and limit provided. Return Values of String split() in JavaĪ string invokes the split in Java and returns an array of strings. split(), the string is the method calling (function invoking) string, that we want to split into substrings. Since the limit is an optional string, if the limit is not provided in the parameter, the split() will return all the possible substrings. The limit is used to limit or control the number of strings generated. limit: the limit is an optional parameter.We can simply say that the string is divided according to the provided regex. ![]() regex: regex or regular expression is a required delimiting parameter.Let us talk about the parameters of the split method. ![]() Now, as we have discussed the syntax of a split() in Java. We will discuss more about these two types of syntaxes later in the Types of the split() in Java section. There are two signature for split() method: So after splitting, we will get five substrings- "ALPHA", "BETA", "GAMA", "DELTA", and "SIGMA". In the example above, we can see that the string is divided into 5 substrings using the delimiter comma (,). Refer to the image below to see how a string is split into substrings using split() method in Java. The String.split() method returns an array of generated substrings. The string delimiters are mostly comma (,) and full stops (.). We can also say that the split in Java is used to break a string based on the provided string delimiter. The split in Java is a method defined under the String class, which is used to break a string around the matches of the provided regular expression. Now, let's talk about how the split() method works on strings. We can use the Java String class to create and manipulate the strings. What is String Split() in Java?īefore learning more about the split() in java, and examples, let us first learn about the strings in java.Ī string is a sequence of characters. The split() method in Java is invoked by a string and returns an array of strings. The split() in Java is also used to break a string based on the provided string delimiter. See this example below demonstrating scenarios with different number of occurrences of patterns: 1.The split() in Java is a method that is used to break a string around the matches of the provided regular expression. It can throw the PatternSynta圎xception if the syntax of the passed regular expression would be invalid. It returns an array of substrings containing the split parts of the original string. It just takes a regular expression as a parameter and splits the given string from the points that match the regular expression. This version of the Java string split method has a single parameter. We will be discussing the working of both of these methods in detail in the coming sections, public String split(String regex) The syntax is as shown below: public String split(String regex, int limit) It allows limiting the number of substrings returned by the method. This method can also be overloaded by adding a limit parameter. Syntax: public String split(String regex) The Java split() string method has the following syntax with the string regular expression as a parameter. ![]() It allows the use of a char array or a string array to store the returning substrings. The end result is returned in form of an array containing the separated substrings. Along with that, this method can also be used to break a string against a specified regular expression. The delimiter can be any character but the most commonly used characters are comma(,) space or a dot(.). Java string split() method allows the user to split a string into one or more substrings based on a specific Java string delimiter or a regular expression. In this article, we will be discussing how the string split method works, how it is overloaded and various ways to effectively use the Java string split method in a Java code with the help of various examples.
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